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test_benchmark.py
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## # Copyright (c) 2010-2017 Apple Inc. All rights reserved. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. ## """ Unit tests for L{benchmark}. """ from twisted.trial.unittest import TestCase from twisted.python.usage import UsageError from benchmark import BenchmarkOptions class BenchmarkOptionsTests(TestCase): """ Tests for L{benchmark.BenchmarkOptions}. """ def setUp(self): """ Create a L{BenchmarkOptions} instance to test. """ self.options = BenchmarkOptions() def test_parameters(self): """ The I{--parameters} option can be specified multiple time and each time specifies the parameters for a particular benchmark as a comma separated list of integers. """ self.options.parseOptions(["--parameters", "foo:1,10,100", "foo"]) self.assertEquals( self.options['parameters'], {"foo": [1, 10, 100]}) def test_filterBenchmarksWithoutDistribution(self): """ If neither I{--hosts-count} nor I{--host-index} are supplied, L{BenchmarkOptions} takes all positional arguments as the benchmarks to run. """ self.options.parseOptions(["foo", "bar", "baz"]) self.assertEquals(self.options['benchmarks'], ["foo", "bar", "baz"]) def test_hostsCountWithoutIndex(self): """ If I{--hosts-count} is provided but I{--host-index} is not, a L{UsageError} is raised. """ exc = self.assertRaises( UsageError, self.options.parseOptions, ["--hosts-count=3", "foo"]) self.assertEquals( str(exc), "Specify neither or both of hosts-count and host-index") def test_hostIndexWithoutCount(self): """ If I{--host-index} is provided by I{--hosts-count} is not, a L{UsageError} is raised. """ exc = self.assertRaises( UsageError, self.options.parseOptions, ["--host-index=3", "foo"]) self.assertEquals( str(exc), "Specify neither or both of hosts-count and host-index") def test_negativeHostsCount(self): """ If a negative value is provided for I{--hosts-count}, a L{UsageError} is raised. """ exc = self.assertRaises( UsageError, self.options.parseOptions, ["--host-index=1", "--hosts-count=-1", "foo"]) self.assertEquals( str(exc), "Specify a positive integer for hosts-count") def test_nonIntegerHostsCount(self): """ If a string which cannot be converted to an integer is provided for I{--hosts-count}, a L{UsageError} is raised. """ exc = self.assertRaises( UsageError, self.options.parseOptions, ["--host-index=1", "--hosts-count=hello", "foo"]) self.assertEquals( str(exc), "Parameter type enforcement failed: invalid literal for int() with base 10: 'hello'") def test_negativeHostIndex(self): """ If a negative value is provided for I{--host-index}, a L{UsageError} is raised. """ exc = self.assertRaises( UsageError, self.options.parseOptions, ["--host-index=-1", "--hosts-count=2", "foo"]) self.assertEquals( str(exc), "Specify a positive integer for host-index") def test_nonIntegerHostIndex(self): """ If a string which cannot be converted to an integer is provided for I{--host-index}, a L{UsageError} is raised. """ exc = self.assertRaises( UsageError, self.options.parseOptions, ["--host-index=hello", "--hosts-count=2", "foo"]) self.assertEquals( str(exc), "Parameter type enforcement failed: invalid literal for int() with base 10: 'hello'") def test_largeHostIndex(self): """ If the integer supplied to I{--host-index} is greater than or equal to the integer supplied to I{--hosts-count}, a L{UsageError} is raised. """ exc = self.assertRaises( UsageError, self.options.parseOptions, ["--hosts-count=2", "--host-index=2", "foo"]) self.assertEquals( str(exc), "host-index must be less than hosts-count") def test_hostIndexAndCount(self): """ If I{--hosts-count} and I{--host-index} are supplied, of the benchmarks supplied as positional arguments, only a subset is taken as the benchmarks to run. The subset is constructed so that for a particular value of I{hosts-count}, each benchmark will only appear in the subset returned for a single value of I{--host-index}, and all benchmarks will appear in one such subset. """ self.options.parseOptions([ "--hosts-count=3", "--host-index=0", "foo", "bar", "baz", "quux"]) self.assertEquals(self.options['benchmarks'], ["foo", "quux"]) self.options.parseOptions([ "--hosts-count=3", "--host-index=1", "foo", "bar", "baz", "quux"]) self.assertEquals(self.options['benchmarks'], ["bar"]) self.options.parseOptions([ "--hosts-count=3", "--host-index=2", "foo", "bar", "baz", "quux"]) self.assertEquals(self.options['benchmarks'], ["baz"])